Kaidan sits next to 5 phonetic neighbors — Caden, Aidan, and Hayden are the closest matches by sound. Most share Kaidan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Cadán, little battle"
"bright mind, shining spirit"
"green, dark green (water)"
"invented name, no inherent meaning"
"who is like God"
"lord, my lord"
"son of Magg (pet form of Margaret)"
"may God smile"
"lotus flower"
"hollow, vain (from Latin Cassius)"
"destroyer (possible etymological root)"
"forest meadow"
"settlement by the woodland grove"
"born of the ocean wave"
"little warrior or little church man"
"courageous, valiant"
"beautiful (phonetic usage)"
"God is gracious"
"experienced in rule"
"light, illumination"
"valley"
Similar sound: These names share phonetic patterns with Kaidan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Kaidan.
Rhythm: Kaidan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.